2 Samuel 20:3

They were shut up. We are not to conclude that all widows had to live in seclusion, but only that those women who belonged to the royal harem, but had been taken by another, were not allowed to return to it, but condemned to a sort of imprisonment. Living in widowhood. This is explained by the Chaldee as lasting only during David's life, its rendering being, "in widowhood while their husband was alive."